Question 1

During 10000 BC, the population of the world was

Accepted Answer

During 10,000 BC, the world population was approximately 1 million. Gradually, it increased to 200 million in the early AD period. The global population crossed 500 million around 1500 AD and reached 1 billion by 1810. Currently, the world population is approximately 7.9 billion. [63RD BPSC PRELIMS EXAM, 2018]

Question 2

Cocos Plate lies between

Accepted Answer

The Cocos Plate lies beneath the Pacific Ocean and meets the west coast of Central America. Other tectonic plates include: the Nazca Plate (between South America and the Pacific Plate), the Arabian Plate (between the Red Sea and the Persian Gulf), and the Philippine Plate (between the Asian Plate and the Pacific Plate). The Earth is divided into seven main plates: Eurasian, Pacific, African, North American, South American, Indo-Australian, and Antarctic plates. [63RD BPSC PRELIMS EXAM, 2018]

Question 3

“Rust Bowl” of the USA is associated with which one of the following regions?

Accepted Answer

The Rust Bowl in the United States is associated with the Pittsburgh region. It was historically a major industrial hub producing heavy industrial materials and consumer products. Post-World War II, industrial development shifted elsewhere, causing depopulation and decline in these areas. [63RD BPSC PRELIMS EXAM, 2018]

Question 4

Which one of the following is known as the “Coffee Port of the World”?

Accepted Answer

Santos Port, located in the city of Santos in São Paulo, Brazil, is known as the 'Coffee Port of the World' as most of Brazil's coffee is exported through it. It is the largest port in Latin America. [63RD BPSC PRELIMS EXAM, 2018]

Question 5

Which one of the following states has the highest percentage of area under forests?

Accepted Answer

According to the India State Forest Report, 2021, states with maximum forest area include Madhya Pradesh, Arunachal Pradesh, and Chhattisgarh. States with the highest forest cover percentage include Mizoram, Lakshadweep, Andaman and Nicobar Islands, and Arunachal Pradesh. [63RD BPSC PRELIMS EXAM, 2018]

Question 6

Which one of the following soils is deposited by rivers?

Accepted Answer

Alluvial soil is transported and deposited by rivers, making it a prime example of non-regional soil. It covers about 40% of India's land area. Black soil, also called regur or cotton soil, is rich in iron, lime, potash, aluminum, and calcium but deficient in nitrogen and phosphorus. Laterite soil is rich in iron oxide and aluminum oxide but deficient in nitrogen, phosphoric acid, potash, lime, and organic matter. [63RD BPSC PRELIMS EXAM, 2018]

Question 7

What is the share of hydroelectric power in the total electricity produced in India?

Accepted Answer

India is the world's third largest electricity producer and consumer. It ranks 7th globally in hydropower production. Currently, hydroelectric power contributes approximately 13.2% of total electricity generation in India. [63RD BPSC PRELIMS EXAM, 2018]

Question 8

Which census year is called the “Demographic Divide” in the population study of India?

Accepted Answer

The 1921 census is called the 'Demographic Divide' in India. Between 1911 and 1921, the population declined due to famines and epidemics, resulting in a high death rate. After 1921, the population began to increase steadily. The first census of India was conducted in 1872 during Lord Mayo's tenure and became decennial from 1881 under Lord Ripon. [63RD BPSC PRELIMS EXAM, 2018]

Question 9

The largest number of cotton mills in Tamil Nadu are found in

Accepted Answer

Coimbatore hosts the largest number of cotton textile factories in Tamil Nadu. It is a major industrial city and is popularly called the 'Manchester of South India'. [63RD BPSC PRELIMS EXAM, 2018]

Question 10

Which one of the following states is the leading producer of rubber in India?

Accepted Answer

Kerala is the largest producer of natural rubber in India. Rubber is obtained from latex of tropical trees. India's first rubber plantation was established in Kerala in 1895. India is the third largest rubber producer globally after Thailand and Indonesia. Rubber is also grown in Tamil Nadu and the Garo Hills of Meghalaya. [63RD BPSC PRELIMS EXAM, 2018]

63rd Prelims 2018